Will XFinity allow dual esims one from XFinity other for different carrier active simultaneously in near Future ?

I recently switched form T-Mobile to Xfinity, I had 2 esims (one for TMobile other for an international carrier). After the Switch I am able to move both the esims but, I can only make one esim active at a time, which was not the case with TMobile. 

Its a major inconvenience, as I may be missing out on an important call from either carrier just because i am don't have them both active at the same time ? 

Why does XFinity have such a flaw ? dual esims is the capability provided by the phone manufacturer and it has system in place to handle it. 

I have to place my international esim on a different device, which makes me carry 2 phones :-( .

Question, Will XFInity work on getting Dual esims active at the same time ? Is it something on their plans? as this is a major pain point for me, I wish I had researched about this before the switch.