So now stop khatme qadriya, khawajagan, 11vi shareef etc...just because some people might come into the musjid and get a wrong impression or fall in doubt?
i'll bite.
these actions are mustahabb indeed.
if not doing them somehow makes way for you to bring common knowledge-less and practice-less people to Sunniyat and Ashari aqidah, or brings them towards being habitual musalleen and practicing Muslims who value faraiz and abstinence from muharramaat,
THEN YES. it would be smart and wise to stop it - permanently or for a while or reduce it - depending on the circumstances.
don't forget some of the things you mentioned are desi-Sunni specific, not universal to the entire world of Islam.
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Mufti Akmal Qadri for example says it's fine to let non-practicing people to come to naatkhwanis or Milad or Shabe Baraat gatherings and so on without any rebuke, that maybe this might open their hearts to knowledge and practice.
I digress - our people are dheet and have a miserable bad habit of taking things for granted, be it in deen or duniya!
I feel every such mehfil like you mentioned, should start with a point blank rebuke - this mehfil is of NO USE to you if you do not have the aqidah of the Ahlus Sunnah or are insistent on non-practice of core actions. Example - Ok so you took a shower and came to pray Maghreb and Esha and participate in the Shabe Baraat gathering and Yaseen recitation, and the dua after it - but if you were insistent on "bunking" the remaining three namaz' before this (and a few more, over the course of the week, other than Juma), then please leave the Shabe Baraat ki dua aside, either find a corner in the mosque, or go back home and offer your qada ASAP!
it is about priorities, and they are assigned by deen itself not a particular person
1. Aqidah of Ahlus Sunnah
2. Faraiz
3. Waajibaat
4. Sunnah Muakkadah
5. Sunnah ghayr-muakkadah
6. Mustahabb
7. Mubah
everything needs to be safeguarded and protected, but some things take precedence.
If we completely stop just to accomodate a few muslims
it's not about accommodating anyone or optics for the wahabis.
it is about safeguarding the faith of the jahil awam. our awam has reached unprecedented levels in jahalah and non-practice. People actually BELIEVE participating in Gyarwhin Shareef and begging to awliyaa, or late night naatkhwanis when they go home and miss Fajr or miss it in the mosque - is their get out of jail card for jahalat and non-practice - for not once bothering to learn aqidah of the Ahlus Sunnah, for leaving namaz, for no purdah, for corrupt financial dealings, watching kufr infested movies and so on.
we have reached levels where utter juhalaa are sitting on live TV and preaching to people - agar aap namaz padhte hain to boht acha hai, nahin bhi padhte to Asr ke waqt ke baad yeh wazifa padh liya karein! (seen with my own eyes)
that's how pathetic the awam have become - we need a wazifa to solve xyz issue but insist on not deviating by just 1 mm from our levels of non-practice - with shayateen al-ins cheering them on!