I think the focus is on other things, those other things being hf20, SMT, and communities. They don’t have enough developers to be able to go full speed on all of them.
You also have the official steem libraries for python and JavaScript that are equally neglected.
I think it is just simply a manpower issue. Which shouldn’t be an issue with how many financial resources they have.
Maybe their operating budget isn't as large as we often assume it is. I think cash on hand needs to be considered because qualified devs in the blockchain space probably consider which chains they truly believe in and what will profit them the most, and if steemit inc is viewed as neither to them then stinc is going to have a problem recruiting them and keeping them.
Also if front-ends really were a priority then wtf happened to busy and zappl's delegations, or am I just missing something here.