Lorechaser: Absolutely.

When I first started GMing Shadowrun(2e was my first time), i didnt know just what the hell people could get away with...that was a little in the grey market area. As you learn the rules, you become better at reigning in the people who are trying to abuse the system.
And yes, a large die pool does not mean powergamer, or munchkin, and also remember min maxing in an of itself is not a bad thing.
Also as Lorechaser pointed out, looking at the whole gives a much bigger picture than looking at one or even two pools.
And also, keep in mind other little odds and ends. Too many stats at 1 should raise a red flag. Another tactic people try to push buy is the take low attributes, and buy them up with ware, and much less BP in the end. Players should be encouraged to play what they see in their heads. Surely not EVERY player's ideal Sam has a natural 5 Agl and 1 Str, which is purchased up. Numerically sure, but realistically?
Heavy purchased attributes with tons of low skills is another tactic to be able to do everything...keep in mind if a character twinks Agility, Reaction, Logic and Charisma up to high levels(and it can go pretty high for a starting character if they dont care for their other stats)they will be able to buy up to around 2 or 3 a LOOOT of skills(Physical, Social, Technical, and Vehicle are mainly covered with these four stats, with some exceptions). Keep a look out for stuff like this as well. Being well rounded is one thing but twinking to get a one-man party who can do everyone's job might step on some toes.
This character would cause a hell of a lot more trouble than the human samurai who happens to throw 16 dice in Automatics and 14 in Blades.