Then schedule better in future. Play Basel and pull out of Paris, as Federer did. If he feels he must play Paris but has no chance/no choice but to tank, play a couple of matches then pull out. It's not rocket science. There is no reason and no benefit to losing a match to a qualifier having held match point. He may well win London next week. I hope so. But it will be in spite of today's result, not aided by it. To choke away as many matches as he has recently is NOT a good sign. Imagine if a match point comes and goes against someone next week. Would you really back him to turn it back around? It sets in.
Andy doesn't schedule very well. That's very true. That's something he badly needs to adjust next year. I don't think he choked but after losing the TB, he decided not to go for too much and was okay to lose. Paris is definitely not on his priority list you can sense.
Wasting match points are a bit of concern but it will have to last longer than this, so I'd just wait and see if this is something that's going to continue next year as well. This year has been really great for him as he's won his first Slam after a long time and the Olympic win before the home crowd was especially emotional for him, so obviously he's struggling with these tournaments emotionally. Next year, I don't think these problems will continue.