One way is to set the bar high for the level that meets 'heartbreak' level. Eg. when an orchid dies ----- that's heart-break level.
So events like buds falling off, or a spike becoming out of action ------ don't even worry about that kind of thing. The main thing is the orchid is ok, and will live to form spikes and buds again another day.
The fun and interesting part of orchid and plant growing etc will be to apply the information we've learned and gathered from orchid books (growing guides), forums, internet etc. And to find out what conditions can harm orchids ----- or cause certain set-backs (like spikes aborting etc).
Sometimes, it's hard to say what is the caues of a particular observation ------- and the answer could probably be found faster with lots of 'data' (as in monitoring systems of all sorts (and logging all that information into a computer). Eg..... temperature data (inside pot and outside pot) every 5 minutes, air-flow measurements - just to see if there is any air-flow at all (in any direction), light levels, humidity etc.
Plots of the data might allow some patterns to be seen ------ eg. abrupt changes in conditions, or anything that could raise chances of issues.
And then considerations should also be made about whether the orchid pot stays in one particular spot all the time - and never being moved, or re-located (at any time). And considerations about how long the orchid had been growing in a particular spot (since potting or re-potting).
Also considerations about fertiliser application and/or mag-cal applications. And even any other things that might give clues ---- eg. insect activity, snail activity, fungal activity etc.
Also - your orchid pot is a glass container with no drainage holes. Some orchids can adapt to conditions seen with that sort of set-up ..... as in roots can adapt.
But - maybe, before trying techniques like that ----- could possibly go for some classical method that has a high chance of working nicely, like potting the orchid in a regular opaque plastic pot, with lots of drainage holes underneath that allows water to flow out of it - even when the pot is sitting on a flat surface. And could use airy media (eg. a mix of coarse-enough bark and perlite).
On the other hand ----- if the orchid has been growing nicely for a relatively long time with that particular set-up, then it might be ok to leave as-is ..... and the usual thing will be to just keep a close eye on the orchid (which we will do anyway hehe).
One main rule-of-thumb to know is that orchid roots require enough oxygen to stay alive. And if the water in the pot for some reason doesn't move a great deal, and is relatively wet (and not moving much), then orchid roots --- or parts of orchid roots --- can become oxygen starved, and die, which could then lead to other issues.
The orchid still looks great right now ---- which is nice. And it is producing another spike ----- also good signs! But also keep in mind that some growers also mention that producing of spikes in some cases can mean that the orchid could be doing something like trying to reproduce before it becomes out of action (due to growing conditions not working nicely for its growing system).
It's great VM that you posted pics of your setup ----- as pics can often convey a heap of information.
In any case ------ looking forward to see this new spike keep going, and we see some nice flowers!!!