"Past 9.2" yes, but for someone who is only interested in "Only need to install GBA/DS CIAs once" and "Save space on the SD card" (like that guy for example who almost seem interested in the 2DS for it's GB(A) compatibility on a better screen than on a GB(A)), then these features are not a9lh exclusive (no need to go past 9.2), so my point remains.Your statement seems a bit contradicting. Before A9LH, emunand/rednand was the only way to hack past 9.2... allowing for CIA installation and the like. Its not like theres A9LH, emunand peasants, and then some third option using neither. A9LH is the only hack method that provides the advantages listed. And while its not a forced feature.. it IS still a feature that is A9LH exclusive.. which basically makes your point invalid.
Now yes, a9lh is the only method that provides the whole set of features listed (if set up "correctly" (I mean that if you want GBA installed once, then "correctly" is "sysNAND only")) but these features aren't necessarily exclusive "advantages" when taken separately (though I obviously agree that whatever one wants to do with a 3DS, a9lh is almost always the best way to do it (except if it is "play cartridges game only with a broken SD port")).