Can’t disagree more with some comments on pyramids being somewhat limited in space and comfort or specialized in weather-worthiness and/or lightweight at the expense of anything else.
Pyramids are light because they’re simple and they’re solid because they’re aerodynamic. And because they’re simple.
Most of the weight in traditional tents comes from the design complexity. Get rid of that and you get a naturally light shelter.
Sure the walls are slanted but vertical walls are only needed in tight shelters. Vertical walls need a lot of frame to be able to stand up to any wind so you get a heavy and still cramped space. Pyramids on the contrary can be made big size with no big penalty on frame weight or wind-worthiness. The central part offers all the elbow room you might need and the periphery is perfect for gear.
The only part where mids are not a perfect match for the OP’s criteria is the double wall: mids are big and need a lot of fabric so double walls increase the weight. But the OP said it could be single wall if big enough so a near-perfect match.
This mid here below is 1.7 kg with its own pole. If a hiking pole is used, take a half kilo off that:

It’s a Golite Hex3, not available anymore but there are similar ones.
Pyramids are light, solid and comfortable, all the same time.
Some current designs out there I don’t understand, some others may be more focused on one or two of the three criteria above and less on the other(s). For general use for two, a hexagonal mid of the right size is just perfect. The former Hex3 was very good except for a few minor details.
If interested, you can find a thorough discussion on mids in my website