I just received e-tickets that I purchased a few weeks ago! Thanks, Betty! You were wonderful to work with!
Some details, in case anyone is interested...
I told Betty our travel dates were up in the air, with soonest travel being February and latest being July. She said that if she put February travel, I would get the e-tickets sooner, but would lose out on the ability to cancel. It looks like that is why there is a delay in sending the actual tickets- to allow for cancellations before they actually purchase them from Disney.
I went ahead with February dates, but then found out that my son is having surgery tomorrow, so we are back to thinking July. The tickets have a use by date of January 2021, so no worries there.
If anyone is uneasy about not having the actual e-tickets in hand, there should be no problem buying for an earlier date, as long as you are ok with not having the ability to cancel.
Also, does anyone know if it is ok to load my tickets in to the Disney app now, or should I wait until closer to when we use them? I'm going to print them out and save the file, of course, but I'm just paranoid about somehow losing access to them before we go. Then again... Some one could hack my Disney account and use my tickets... (See, paranoid

).