I believe you
I have some experience in PvMP (Rank 9, I think) but not very much, and not recently. From my time out there, I see all of the points you are making and have made use of them myself.
That is why I am advocating for a completely different ruleset for Burglars in PvE versus PvMP. The chasm of magnitude and significance between the PvE and PvMP environments with respect to the unique abilities Burglars bring to them is massive. No other class is anywhere near to us in this regard.
The problem with balance for Burglars is that those same abilities that make us so great in PvP have far less (if any) significance in PvE:
Being able to sneak up unnoticed against a foe in PvMP? Massive. That same ability in PvE? Virtually irrelevant (save for possible exploiting, which is a whole issue unto itself).
Touch and Go in PvMP? Ridiculously massive. In PvE? It's fun, I guess, but irrelevant. If a Burglar is in a position where they actually are using Touch and Go in group content, the battle has already gone sideways, and save for maybe surviving for a few extra seconds to give time for the tank to be rezzed, it just means extra time before a wipe and restarting the battle.
Constant CC in PvMP? Ridiculous. In PvE? All but irrelevant, because the foes you would want to do this do are immune, and the ones susceptible to it are either dead in an instant or can be locked down in more efficient ways.
The issue with Burglars and overall balance is a very difficult one. It is going to take a lot of very smart people to figure out a solution for Burglars which works for both PvE and PvMP, and which also sees us completely unchanged between the two environments (if a solution exists at all). I think the best thing we can do is be open and honest with ourselves, and with each other, regarding our perspectives on the issue and take great care in explaining those perspectives when we make our arguments.
You post is an excellent example of that, so thank you