Now that ETH is proof of stake, can you do on chain randomization?

Previously miners could manipulate randomization inputs – but now ERC20 tokens and ERC721 and ethereum blockchain is proof of stake, can we return to this discussion and has it changed anything?

reference discussion and the hundreds since:
https://www.reddit.com/r/ethereum/comments/483rr1/do_not_use_block_hash_as_source_of_randomness/