nah, your wrong. the reason it looks like this is because they are the ones that constantly keep attacking, blocking opponents or opponents getting hit is your bar building extra quickly. when your the one on the receiving end your bars also fill slowly. you have to attack to build bar, and the top tiers attack better. even during hits they get more bar because they can use more normals, command normals and special attacks during 1 combo without using dc or dm bar. for example, terry can only do s.C, df+C, qcb+A as a combo without using meter. on the other hand k, kula, lizzy, kyo & andy can use more than that to combo, thus building more bar. k as example, s.C, f+A, qcf+A, f+D, qcb+B or B, again qcb+B or D, dp+C, D. all this in 1 combo without using bar, shits unfair.
im also thinking using ioris command grab during combos might fill more bar, as it could potentially let you fdo more specials without using the dc or dm bar. ask the people playing though.