Roblox, good or bad for the world of game development?

If you haven't heard of roblox, you will soon.
It's one of the largest growing video game market sites,
with a 46%* increase in members since last year.

Some stats:

Monthly amount of Roblox engagement: 1.2 billion hours

Roblox's Monthly Active Users was reported to be 100 m in Aug, 2019.

They are becoming more and more promident in the video game market each day but
the question remains:

Is this a good thing or a bad thing for game developers?
And is it the future of making games?

I'll be hiding in the comments, looking forward to your replys!

I myself am a roblox Game Developer (amongst other),
if you have any questions feel free to drop them below!

And as always, Many thanks and happy dev'ing!

*Was unable to find the source for this since first read.
Take with a grain of salt. - If anyone can correct me that'd be great.