Yes, sad state of affair even last year already.  The infotainment were crappy and slow, picture quality was like …. And then their intro to Malaysia using rap was hideous. 
And on one flight back to Malaysia from Doha, they did not serve alcohol as first refreshments u til I have to ask for it…….food is terrible, and full of MSG.  The old nasi lemak is gone already replaced by a new nasi lemak which taste terrible. 
Unfortunately, most flight out of KLIA and to KLIA are code share with MH as the operator.  No choice even if one were to book other airline, you still get MH service.

I think they stop showing the rap video already. 
I used to take the flight from SH-KL regularly many years ago.  The food is always the same.  Morning is egg, nasi lemak.

Return flight in the afternoon are fish or noodles … I usually have a few bites and then stop.  Had my fill in the airport already then.  Their chicken rice at the airport was good.  Now they have expanded a lot.  Those days the chicken rice shop was just below and nearby the Burger King area.

If not mistaken, night flight to and fro SH is operated by China airlines.