Takeout doubles are something that you and partner will need to learn, understand, and agree about as soon as possible. You have probably been taught different things about when you can double an opening one level bid and when you can make an overcall. I am pretty much fixated on “Major Oriented” takeout doubles, so would have no problem with the hand that South had when East opened the bidding with 1H.
Board 20 from 1/5/19
Dealer W All Vul