Yes, It is possible I have done it myself a fair couple of times. It is possible. But it is not reliable. Because predict how many overwatch the Umbra is going to trigger is just not possible, or at least not for me. I often fail, reload, do it again, change almost nothing, and then may or not may work.
You can pull it off in my experience 50% of the time, trigger 2 overwatchs is not hard, but against an umbra you need 3 for most of the game, the third… well deppending on how far is the umbra, and how is the terrain, and plain luck… Sometimes.
The point is, it is not a reliable tactic, and is easy to get frustrated by it. Granted I am probably not a great overwatcher. But one of the reasons is I could be easily punished for trying so I often didn’t. And when I did, often I had to save scum the way out of there.
Of course it is less frustrating now, that you can tell appart the umbra. but as also the flamethrowers are not as strong. I simply blow the host arms off, and hope that it runs away and not deal with it, as long as does not bleed out. Because If the umbra appears out of your line of sight is also bad.
Are you danzing around in the hive mind again?
I think we need a bit of perspective. The goal should be how to improve PP. First, we can agree on a problem (hopefully), and then we can discuss about solutions. As long as we do it in a constructive manner.
I hope we all more or less agree on that the current OW in PP, not being reliable, and being a bit too clunky, and a bit slow. It is not useless, far from it. But it is frustrating and punishing.
If you know an enemy will melee charge you from 10 tiles away next turn, but you can’t be certain it can be stopped by your full squad setting an OW trap on it, and I argued you can’t in many cases (Umbra). Then there is a problem. A problem that leads to frustration and to look for ways to cheese the game, and not use OW.
So, can the current OW be improved? of course it can. there are many ways to do it, from teaching better in game how it works, tune it to be faster and more reliable, improve the LoS to fire (so u not fire into a wall because it triggers too soon). To rethink the take turns situation.
We can’t be certain a solution will work, or will not imbalance more the game. But I think diagnosing a problem and proposing ideas is what we can do about it. When someone proposes an Idea to improve the game, and another player says I think your idea would not improve the game can be frustrating. Sometimes the criticism makes sense, sometimes you actually would not know before trying it.
I may be wrong, but I think all the propossed solutions here are interesting enough to at least worth trying.