I get it,you want to be sure every time you want to lock low symbol rates below 1000 Ms with a receiver that's not made for such transponders!
However,we must know that these receivers with many media functions have demodulators/tuners because their manufacturers have used the latest reception technologies appeared in the last few years for various functions,such as MIS,S2X ext,etc.,and among other things,the reception of programs tv/radio with very low rates symbol.Their implementation was purely commercial and not professional.That's why the developers took this into account,and on a case-by-case basis,some have invested a little more in the program/images to exploit a little the capacity of these demodulators for the reception of parameters difficult to detect with tuners of the older generation.
And the most affordable tuner is the one from Silab or others.And although these demodulators/tuners can perform many functions,they do not cover the entire spectrum of receptions,among other things,to accurately detect transponders at a distance of only a few KHz,as there are many who have radio programs with low symbol rates.Rhetorically ask,how can you lock,say,the 5 TRT radio programs at 42.0E that have the same symbol rates with such tuners/receivers,as DM or Octagon?
And if we add the fact that 99% of consumers have antennas only for the reception of commercial TV programs,for the reception of which these receivers have been thought and produced.Or for the reception of these radio programs you must have a strong signal,which many antennas can not provide.In fact,their transmission is intended only for TV/radio providers.
But the most important argument, as many users who work in this environment know,is that for apps/image developmentrs is the implementation of functions with media content,as has DM920UHD and many other devices of this kind.
In other words,this media content counts first and not reception.For the last you need professional devices that ensure your reception and stability of the signal.
So you're right in the end if what I said above is true,i.e."misses them no doubt...?"