No I literally mean I could see them playing him at the point, despite the concerns you mention.
Simmons attempting to chase John Wall or Russell Westbrook all over the court is going to be a disaster and just serve to get him in foul trouble. You can probably play him alongside a stretch four and two guards and have him guard 3s without too much trouble, but playing him as a traditional point guard is asking for trouble.
Simmons-Stauskas-Covington-Noel-Embiid is a lineup I could see them pushing for a bit.
If the twin towers idea was viable they'd be breaking it out right now, but Embiid clearly plays better next to a four that gives him space to work - it's not a coincidence that they started winning games when they scrapped the whole two-big thing. Playing Noel in that lineup, as a non-shooter with another non-shooter at point guard, forces you to use Embiid as a space-maker instead of the centerpiece of the offense. I certainly hope they try to turn Embiid into the next Ryan Anderson, but I don't think it's likely.
Even if you max out Noel they would match. There is no reason not to. If you need to move a big then you look at moving Okafor, perhaps with one of their picks this year and try and move up in the draft to get their PG of the future.
We've been discussing this in another thread, but there are plenty of reasons for Philly to not commit $50 million a year to the center position (remember, this is year 3 for Embiid and he's eligible for a max extension this summer). If they're really intent on stretching this thing out they can buy themselves one more year to find a partner for a Noel trade, but I don't think that big offer is coming down the pipe. After that, having both Noel and Embiid on huge deals becomes a serious hamper on their ability to build a team.