I disagree and strongly. Unfortunately there are no measurements on those speakers. However as usual speaker manufacturers tend to obfuscate. When I see a tower speaker with a bunch of drivers, and a specification of nominal impedance 8 ohms, and then it says minimum impedance 2.9 ohms, I cry foul. That speaker more likely than not is a receiver buster with that spec.
Actually as a designer, a minimum impedance that low is a massive red flag that things are not right.