Of course, critical skate fans (by which I mean those with more technical knowledge a category I don't include myself in) can pick apart the weaknesses of _any_ skaters for as long as someone will read/listen to them.
Liking or not liking the skater as a person or skater has nothing to do with that. The top skaters are going to get more of it and when a skater is as dominant as Plushenko is the technical picking apart is going to be that much more intense. Those who enjoy watching skating but aren't so interested in picky technical aspects should probably just avoid such discussions.
As for Euros LP I saw it on Eurosport and thought EP clearly won, but looked tired (being sick will do that) and that the margin was a little high. This is also a weakness of COP. Most rational observers would assume that Plushenko gets (and should get) less points for his spins than Lambiel does and would be surprised that that isn't the case.
Of course Lambiel (who I generally enjoy more than EP) has weaknesses, bad 3ax (antmanb, again, has interesting speculation on why) a tendency to lose concentration (those slips in final footwork at Euros) and an overall tendency towards juniorish presentation (I didn't like him for years because his costumes all looked like they belong on 12 year olds).