Windy is called windy for a reason, they put the most time into getting weather modals, for free to the general public and they are still doing that as evident with the HRRR.
About the radar, most people are fine with a pretty radar and it satisfies their needs. Unfortunately windys audience attracts people who like and know the weather. A smoothed radar does not satisfy me or probably a-lot of windys users because it is not accurate. Windy is a small team, they have to keep the current code bug free, updated and have a-lot of other responsibilities, coding new stuff takes time and small companies need alot of it to make a quality product.
Why they don’t have a good radar I do not know but I believe they never put alot of time into that, they put more time into modals and I hope one day they put more time into the radar. Until then, they still have a-lot of work to get more modals in their algorithm.
You can find a good free radar,but you can’t find a good free weather app with all the weather models, Windy is changing that.
If you just want good radar, windy is not for you