The realistic software of ACIM's teachings can be a place of contention. Though some people record good transformations and personal growth from following a program, others get the practices to be inadequate as well as harmful. The course's increased exposure of forgiveness and enjoy is excellent, but experts fight that it can be very easy and naïve, failing to deal with the difficulties of individual relationships and the necessity for limits and accountability. Furthermore, the course's length and intense nature may be overwhelming for some individuals, leading to burnout or disillusionment. Authorities suggest that the time and effort expected to accomplish ACIM might be better spent on more empirically supported therapeutic methods or religious professions which have an established background of effectiveness.

The broader impact of ACIM on the spiritual and self-help towns is also price considering. The course has encouraged an important following and has been incorporated into various New Age and religious movements. However, its influence is visible as a double-edged sword. On a single give, it's offered a construction for people seeking spiritual a course in miracles  development and inner peace. On one other hand, their teachings may contribute to a tradition of religious skipping, where persons use spiritual methods to prevent dealing with personal and social issues. This could result in an application of escapism, where in actuality the focus on religious ideals distracts from the prerequisite of interesting with and handling real-world challenges.

More over, the commercial accomplishment of ACIM and its related materials increases ethical concerns. The proliferation of workshops, publications, and seminars based on ACIM is visible as capitalizing on individuals' religious needs and vulnerabilities. Critics disagree that the commercialization of spirituality can lead to the exploitation of seekers, who may possibly invest significant time and money into techniques that finally do not offer on the promises. This commercialization may also donate to the dilution of the course's teachings, as different interpretations and adaptations proliferate, possibly resulting in confusion and misapplication of the principles.

Still another critical aspect to take into account may be the exclusivity and dogmatism that may often accompany the ACIM community. As the class it self stimulates universal love and forgiveness, the way it is taught and used by some adherents may result in a feeling of spiritual elitism. This may produce an "us versus them" mindset, where those that follow ACIM are seen as enlightened, while people who do not are seen as misguided or unenlightened. Such attitudes can be divisive and detrimental to the course's purported targets of peace and unity. Authorities fight that correct spiritual growth must foster inclusivity and humility, as opposed to creating a hierarchical variation involving the spiritually awakened and the unawakened.