It won't include the resort fees. BA used to include them but not any more. Don't think any company includes them now (with perhaps the unique exception of Virgin when staying at Tropicana).
So wheres the link ? Its just a link to TUI's page
Unfortunately over the years Las Vegas strip hotels have introduced a lot of stealth charges. Resort Fees one of them. Parking is also charged for (was free up to a couple of years ago) around $15 a day. If you go to any of the pools with lazy rivers (we were at MGM) dont think you can hire a tube you have to buy them at $30 a go. All that said LV and particularly the strip is a great place to go and be. I will be visiting again in 2019.
Resort fees will not be included, they are payable direct to the hotel. Depending how much you spend at the resort they MAY be comped. Resort fees are per ROOM and not per person
Good point regarding resort fees, by rights I think they should be added to the headline price posted here, probably pushes the package north of £850