Assalam o alaykum,
Plese re-read the quote of Mujaddid.
Imam Rabbani Mujaddid Alf-i-Sani (may Allah have mercy on him) writes in a maktub regarding khawariq to Mirza Ihsan al-Din Ahmad (may Allah have mercy on him):
واوليائے كه صاحب علم و كشف اند جائز است كه بعضے از خوارق جود اطلاع پيدا نه كنند بلكه صور مثاليه ايشاں رادرامكنه متعه ظاہر سازند ودرمسافت بعيده كارہائے عجيبه وغريبه آن صور بظهور رآند كه صاحب آن صوررا از آنہا اصلا اطلاع يست
"And at times, it happens that people report a certain miracle (karamah) from a certain wali when he himself is not aware at all of this karamah. And those awliya that are from people of knowledge and kashf, it is possible that they are not aware of their own khawariq (karamaat); and their likeness (misali surats — an appearance of their figures) appear in far away places and perform strange things which these [awliya] have no knowledge of.”
And then Mujaddid explains this by giving an example:
“Hadhrat Makhdum Qibla (may Allah have mercy on him) mentioned [to me] that a certain buzurg used to say that how strange it is that people from all around visit and some [among them] say we saw you in Makkah during the Hajj season and we performed Hajj with you and some [among them] say that we saw you in Baghdad and they claim to be friends of mine when I have not even left my house nor have I seen these people before. What a great accusation they put against me!”
[Maktubat, vol.I # 216]
So from the above quote it is clear that seeing an individual in multiple places falls under the category of miracles and miracle is an act of Allah and doesn't fall under the qudrah of humans.
Beside it is not only the view of Mujaddid Alf-i-Sani and 'Allamah Qastallani but of jamhur of Ahl al-Sunnah. Similar was mentioned by Imam Ghazali, Shaykh Abd al-Haq Muhaddith Dahlawi, 'Allamah ibn Munir [Sharih of Bukhari], Shaykh Abu Tahir Quzwayni, Shaykh Muhammad Shadhili al-Maghribi, 'Allamah Sha'rani, Shaykh Muhammad bin Sayyid Darwaish [studenf of 'Allamah ibn Abidin], Hakim al-Ummah Mawlana Thanwi, 'Allamah Sayyid Ahmad Raf'ai, Mullah Ali Qari (may Allah have mercy on him them), etc.