Is expulsion from a university legal due to a student's failure to submit a written statement?

According to the Resolution of the CMU "On approval of the Procedure for the organization and maintenance of military records of conscripts, conscripts and reservists "In order to maintain personal military records, state bodies, local self-government bodies, enterprises, institutions and organizations carry out:

verification of Ukrainian citizens during recruitment (training) presence of a military registration document, or display in electronic form of information contained in such documents, which can be presented (provided) using the mobile application of the Portal Action. Hiring (training), taking on personal military registration of conscripts, conscripts and reservists is carried out only after taking them on military registration in district (city) territorial recruitment and social support centers, SBU bodies, Service units foreign intelligence.

That is, from the time the above-mentioned Decree enters into force (from January 5, 2023), persons who are conscripts must be admitted to educational institutions only after presenting their military registration document (this is mandatory).

If you entered the institution before this Decree came into force, then sooner or later the institution will have to request a military registration document from you, because according to the same Decree, for the purpose of keeping personal military records, state bodies, local self-government bodies, enterprises, institutions and within seven days from the day of issuing the order on employment (training), dismissal from work, completion of training (expulsion from an educational institution) to the relevant district (city) territorial centers of staffing and social support, SBU bodies, units of the Service of foreign intelligence reports on changes in the registration data of conscripts, conscripts and reservists.

The legislation of Ukraine does not say anything about whether an educational institution has the right to deduct due to non-submission of a prescription. According to Article 46 of the Law "On Higher Education" (https://zakon.rada.gov.ua/laws/show/1556-18#Text) the grounds for deducting a higher education student are:

1) completion of studies according to the relevant educational (scientific) program;

2) own desire;

3) transfer to another educational institution;

4) non-fulfillment of the individual study plan;

5) violation of the terms of the agreement (contract) concluded between the institution of higher education and the person who is studying, or the natural (legal) person who pays for such education;

6) other cases provided for by law.