Expert match making is actually going to benefit pub more instead of hurting them, and this is my logic:
Let's make things simple and divide players into four sub-categories:

- A Good gear, good skill
- B Bad gear, good skill
- C Bad gear, bad skill
- D Good gear, bad skill
Current system actually benefit players from category A and D, due to the fact that you can continently right click and check equipment, while in contrast, it is difficult to pin-point who is doing well and who is doing bad in a MPA.
Expert match-making is actually going to help players falling in B category, or the ones doing well despite having average or even poor gears.
Will that make players in C category's life harder? Yes. But think about it, even if they actually care to do 5 recommended quests and some limited quests, those free weapons and units can easily bring them out of "bad gear" category. If they do not even care to even pay that little effort, why do they deserve to get carried in some more advanced contents in the first place?