First, the L112 is not a studio monitor, it is a consumer speaker. I don't believe that JBL EVER produced an L-series speaker as a monitor, usually at that time they were 43xx, 44xx eventually replaced by the LSR series. Many JBL consumer speakers are based on their monitors, which means that you get the engineering of the monitors in a pretty package for home, win-win. I have two pair of consumer speakers also: L100 and L20t which are both consumer versions of monitors, my 4312As are monitors, but mine have the walnut veneer option (very common) which JBL added because they were so popular as home-audio speakers.
I have and have had many studio monitors in my home, the idea of flat speakers that are accurate and are exactly what the Engineer intended the music to sound like has appealed to me for a long time. Why anyone who's "Dad worked for JBL" would have any credibility as a reference I don't know, ... my Brother has been JBL Pro for decades and enjoys my JBL Monitors (actual monitors) as well as his personal Altec and Yamaha monitors as home speakers, ... so hearsay for hearsay.
Are there speakers out there that are not based on monitors that sound better? Sure, just a matter of preference and budget.