I sometimes feel like 感じる should be a 自動詞 (as in, take feelings as its が object). It already behaves intransitively in some cases (like 寒く感じる or 変に感じる) yet you need to use 自発 if you want a が-marked feeling like 違和感が感じられる, though it subtly changes the meaning in a way I don’t feel is always desired. Since 感じる already seems like a mostly involuntary action to me it feels like it’d work better if it accepted things with が directly...