No it is not. And the provided link is in violation of the original museum copyrights...
...three versions of TurboPascal are still available from the museum at Embarcadero. (1.0, 3.0 and 5.5) but you should install Dosbox yourself and THEN install one of those versions to be legally compliant.
...The re-packaging is not allowed. In that sense it is not freeware at all. It is free to use ware...
I'm not going to disagree with your point, as it might be technically correct. However, it is merely a technicality in terms of usage or getting access to Turbo Pascal. There are plenty of places that either allow download by 3rd parties other than Embarcadero, so the person doesn't have to sign up with them, or are providing downloads of packages that include both Dosbox and Turbo Pascal. Even if the person doesn't want to use 3rd parties and makes sure they are in legal compliance, it's of a minor inconvenience to install Dosbox before downloading Turbo Pascal. Usually such people would be highly enthusiastic and/or nostalgic types that are going to be sure to get it and play with it.
If the SourceForge downloads per week are to be believed, it is a significant number of downloads, and that's just one of many sources. It can be indicative of there still being interest in Turbo Pascal (Pascal in general), thus arguably, Free Pascal should position itself appropriately and as a "next step" to enthusiasts, hobbyist, independents, small businesses...
In regards to Objects/Records/Advanced Records versus Classes, there is also a kind of philosophical angle at work too. Various people are going to prefer, feel more comfortable with, or choose the alternatives and not use Classes for their projects or particular program. There is nothing wrong with that, especially if we are talking smaller programs and tasks, but even if they simply don't want to use such directly or minimize such usage. People have/do/can make plenty of interesting and useful programs with Turbo Pascal style Objects. As long as they are useful and beneficial to them, hard to argue against their choices. We also might want to keep in mind that there are some other popular languages that don't use Classes or can use Objects without Classes, such as Go, JavaScript, Lua, etc... Free Pascal/Lazarus can be "philosophically" attractive to such users too, where they have more flexibility in the paradigm they want to use.
Part of what is great about Free Pascal/Lazarus is the features, options, and choices that it provides.