I know they said all they did was rasied match level for Type-59's but now that 7.1 is here I find that shells don't bounce as much as they use to. Hell, you had to be careful even in a Lowe as to where to hit them without a bounce. Now in the Lowe I find the sides are softer than before. The front of the tank and front of turret are still hard as before. Maybe it's just me, but I have killed a lot more Type-59's as of late.
It is just you. I have a Lowe and T-59 and there is no change I have seen. With the T-59 you will be thrown in with big tanks more often now and they have guns that can do bigger damage so that is probably what you are experiencing.