I think moving forward, swapping MMS to SMS is going to be needed.
detail: One thing I found out with putting large text in MMS is the price of broadcasting goes way up. Like 3-5x cost on Twillio. A truncated SMS with URL to read the broadcast on the app is a more cost effective solution.
Especially if you have a recipient list of over 100 people. I was dropping like $50 bucks a month for a client to send 25-30 broadcasts a month.
In the Twillio API this is just another method call.
Note from Project manager