Agreed for the most part.  You would definitely have to at least remove the drive from the fireproof case after any real fire, as the solder on the back panel connectors would melt at less than half the rated temperature, give or take.  There's just no way it would "just work" after any significant period of time at 1500F.

The real question then becomes one of determining the level of protection afforded to the drive mechanism inside.  If it protects the circuit board (max temperature of under 200 degrees or so), then all you'd have to do is carve up the case, plug the SATA drive into a computer, and copy off the data (or not, even).  If it doesn't, but it keeps it cool enough to protect the plastic parts inside from melting.  That means that recovery would be a board and cable swap, which while expensive, is still probably on the order of a grand.

That's IF everything goes right for you, of course.  And therein lies the problem.  To that end, I have three major concerns about this:

1.  A mere $1000 will not buy you much in terms of data recovery.  It's not uncommon for fire damage recovery from a reputable company to cost many thousands of dollars, though I've heard of light fire damage coming in as low as three or four thousand....

2.  The average house fire is 1100 degrees Fahrenheit for 30 minutes.  So in an average fire, your drive might survive, but there's not a lot of wiggle room.  For a commercial data safe, you'd typically specify a rating of 1550 degrees Fahrenheit for 2+ hours.  There's a reason that the real thing costs more than ten times what this does.

3.  In a structural fire, there's also the potential for impact or drop damage as the structure collapses.  This can potentially shatter the glass platters in hard drives, and although recovery is theoretically possible, we're talking about using electron microscopes here, spending millions of dollars, and still only having 80% of the data recovered by the year 2200.

I'm not saying this is a bad thing for people to use for their backup drives, but I wanted to make sure people went into this fully aware that no "fireproof" hard drive can replace the need for proper off-site backups.  And I would also say that if this company really believed in their product, they would not cap their data recovery liability at such a tiny fraction of the cost of a fire recovery.  A $20,000 cap would be much more reassuring.  Even that, though, still doesn't remove the need for keeping a backup somewhere else, preferably somewhere far away in a steel-reinforced concrete vault.